/* GKT Platform CSS Design System */
:root {
    --bg-main: #0b0f19;
    --bg-card: #131b2e;
    --bg-card-hover: #1c2742;
    --bg-sidebar: #0f1626;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-accent: #2563eb;
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-bright: #ffffff;

    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --accent-indigo: #6366f1;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-main: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

/* Light Theme Variables */
body.light-theme {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-sidebar: #f1f5f9;
    --border-color: #e2e8f0;
    
    --text-main: #1e293b;
    --text-muted: #64748b;
    --text-bright: #0f172a;

    --shadow-main: 0 10px 20px -5px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-main);
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge-v {
    font-size: 0.75rem;
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    padding: 2px 8px;
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Status Pills */
.status-pills {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.82rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
}

.status-pill.green { border-color: rgba(16, 185, 129, 0.3); color: var(--accent-green); }
.status-pill.blue { border-color: rgba(59, 130, 246, 0.3); color: var(--accent-blue); }
.status-pill.orange { border-color: rgba(245, 158, 11, 0.3); color: var(--accent-orange); }

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
}
.dot.pulse {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Buttons */
.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:hover, .icon-btn.active {
    background: var(--bg-card-hover);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), #2563eb);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-green), #059669);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}
.btn-success:hover { filter: brightness(1.1); }

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.1); }

.btn-danger {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.4);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.3); }

.btn-full { width: 100%; justify-content: center; }
.btn-lg { padding: 0.8rem 1.6rem; font-size: 1rem; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.78rem; }

/* Main Tabs Navigation */
.main-tabs {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 2rem 0;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 0.8rem 1.4rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.92rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
    font-weight: 600;
}

.tab-badge {
    font-size: 0.68rem;
    background: var(--accent-indigo);
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
}

.count-badge {
    font-size: 0.75rem;
    background: var(--accent-green);
    color: white;
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 700;
}

/* Tab Content Panes */
.tab-content {
    display: none;
    padding: 1.5rem 2rem;
    flex: 1;
}

.tab-content.active {
    display: block;
}

/* Catalog Tab Layout */
.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
}

/* Sidebar Filters */
.filter-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    height: fit-content;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.text-btn {
    background: none;
    border: none;
    color: var(--accent-blue);
    font-size: 0.8rem;
    cursor: pointer;
}

.search-box {
    position: relative;
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 0.6rem 0.6rem 0.6rem 2.2rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-size: 0.85rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
}

.form-select {
    width: 100%;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-size: 0.85rem;
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.range-inputs input {
    width: 45%;
    padding: 0.4rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-main);
    color: var(--text-main);
    font-size: 0.8rem;
}

.quick-stats-box {
    background: var(--bg-sidebar);
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
}

.green-text { color: var(--accent-green); }

/* Results Section */
.results-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

/* Item Card */
.item-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transition: all 0.25 ease;
    position: relative;
}

.item-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-main);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.mfg-tag {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 4px;
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.cad-available {
    font-size: 0.7rem;
    color: var(--accent-green);
    display: flex;
    align-items: center;
    gap: 3px;
}

.item-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-bright);
}

.item-specs {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.spec-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border-color);
}

.item-price {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-bright);
}

/* AutoCAD Tab Layout */
.autocad-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
    height: calc(100vh - 170px);
}

.acad-palette {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    overflow-y: auto;
}

.palette-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 0.95rem;
}

.badge-acad {
    font-size: 0.7rem;
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-orange);
    padding: 2px 6px;
    border-radius: 4px;
}

.palette-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.palette-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex: 1;
}

.palette-item {
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.7rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.palette-item:hover {
    border-color: var(--accent-blue);
    background: var(--bg-card-hover);
}

.palette-item-info h5 {
    font-size: 0.85rem;
    font-weight: 600;
}

.palette-item-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.acad-status-box {
    background: var(--bg-sidebar);
    border-radius: var(--radius-sm);
    padding: 0.8rem;
    margin-top: auto;
    font-size: 0.8rem;
}

.acad-status-box h4 {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    color: var(--accent-blue);
}

.acad-metric {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.3rem;
}

/* CAD Canvas Viewport */
.cad-canvas-area {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.canvas-toolbar {
    padding: 0.8rem 1.2rem;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.drawing-info {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.drawing-name { font-weight: 600; color: var(--text-bright); }
.drawing-scale { color: var(--text-muted); font-size: 0.78rem; }

.canvas-viewport {
    flex: 1;
    position: relative;
    background: #060911;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-background {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
}

.floor-plan-room {
    width: 85%;
    height: 85%;
    border: 3px solid #38bdf8;
    position: relative;
    background: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
}

.room-label {
    position: absolute;
    top: 10px;
    left: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #38bdf8;
    letter-spacing: 1px;
}

.utility-wall {
    position: absolute;
    display: flex;
    gap: 1rem;
    font-size: 0.7rem;
}

.utility-wall.top {
    top: -24px;
    left: 150px;
}

.wall-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}
.wall-tag.water { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }
.wall-tag.power { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.wall-tag.drain { background: rgba(16, 185, 129, 0.2); color: #34d399; }

.placed-items-layer {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    padding: 45px 20px 20px 20px;
    gap: 15px;
}

.drop-placeholder {
    margin: auto;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.drop-placeholder i { font-size: 2.5rem; margin-bottom: 0.5rem; color: #38bdf8; }

.placed-block {
    background: rgba(30, 41, 59, 0.9);
    border: 2px dashed #38bdf8;
    border-radius: var(--radius-sm);
    padding: 10px;
    color: white;
    font-size: 0.8rem;
    cursor: move;
    box-shadow: 0 4px 10px rgba(0,0,0,0.4);
    display: flex;
    flex-direction: column;
    gap: 4px;
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.placed-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    color: #38bdf8;
}

.placed-block-specs {
    font-size: 0.72rem;
    color: #94a3b8;
}

/* SAP Tab Layout */
.sap-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sap-header-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sap-title-row {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.sap-logo {
    width: 60px;
    height: 40px;
    background: #008fd3;
    color: white;
    font-weight: 900;
    font-size: 1.3rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sap-grid {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th, .data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    color: var(--text-muted);
    font-weight: 600;
}

.sap-connection-bar {
    background: var(--bg-sidebar);
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.status-indicator.online {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

.json-viewer-container {
    background: #060911;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: #38bdf8;
    max-height: 280px;
    overflow-y: auto;
}

.sap-response-box {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.4);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.sap-response-box.hidden { display: none; }

.response-icon.green {
    font-size: 1.5rem;
    color: var(--accent-green);
}

/* Import Hub */
.drop-zone {
    border: 2px dashed var(--accent-blue);
    border-radius: var(--radius-md);
    padding: 3rem;
    text-align: center;
    background: rgba(59, 130, 246, 0.03);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.drop-icon {
    font-size: 3rem;
    color: var(--accent-blue);
}

.import-progress-area {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.import-progress-area.hidden { display: none; }

.progress-bar {
    width: 100%;
    height: 10px;
    background: var(--bg-sidebar);
    border-radius: 5px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    transition: width 0.3s ease;
}

.import-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card i {
    font-size: 2rem;
    color: var(--accent-blue);
}

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-backdrop.hidden { display: none; }

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    padding: 2rem;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
}

.modal-header { margin-bottom: 1.5rem; }
.specs-table { width: 100%; margin-bottom: 1.5rem; font-size: 0.9rem; }
.specs-table td { padding: 0.4rem 0; }

.price-highlight {
    font-size: 1.3rem;
    color: var(--accent-green);
}